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Bulk electronic structure of Ce compounds studied by x-ray photoemission and x-ray absorption spectroscopies

Physical Review B, ISSN: 0163-1829, Vol: 52, Issue: 23, Page: 16503-16507
1995
  • 13
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  • 4
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Metrics Details

  • Citations
    13
    • Citation Indexes
      13
  • Captures
    4

Article Description

The results of a systematic x-ray absorption spectroscopy (XAS) investigation across the Ce M4,5 and N4,5 thresholds for CeCo2, CeRh2, CeRh3, and Ce7Rh3 are reported. The data have been analyzed by employing a simplified version of the Anderson single-impurity model in the infinitely narrow bandwidth approximation for the extended states. The model has been applied to the bulk Ce 3d XPS spectra of these compounds. The bulk values of the Ce 4f-occupation number nf and of the 4f extended states interaction strength obtained have been checked by applying the model to the bulk sensitive Ce M4,5 XAS line shapes. The possible influence of a configuration dependence of the hybridization strength in the nf and determination has been discussed. This joint analysis allowed us to obtain an accurate estimation of nf. The Ce N4,5 XAS line shapes are in agreement with the deduced trend of the 4f electrons interaction strength with the conduction electrons in the bulk. © 1995 The American Physical Society.

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